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undertook    音标拼音: [,ʌndɚt'ʊk]
vbl. undertake的过去式

undertake的过去式

Undertake \Un`der*take"\, v. t. [imp. {Undertook}; p. p.
{Undertaken}; p. pr. & vb. n. {Undertaking}.] [Under take.]
1. To take upon one's self; to engage in; to enter upon; to
take in hand; to begin to perform; to set about; to
attempt.
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To second, or oppose, or undertake
The perilous attempt. --Milton.
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2. Specifically, to take upon one's self solemnly or
expressly; to lay one's self under obligation, or to enter
into stipulations, to perform or to execute; to covenant;
to contract.
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I 'll undertake to land them on our coast. --Shak.
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3. Hence, to guarantee; to promise; to affirm.
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And he was not right fat, I undertake. --Dryden.
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And those two counties I will undertake
Your grace shall well and quietly enjoiy. --Shak.
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I dare undertake they will not lose their labor.
--Woodward.
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4. To assume, as a character. [Obs.] --Shak.
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5. To engage with; to attack. [Obs.]
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It is not fit your lordship should undertake every
companion that you give offense to. --Shak.
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6. To have knowledge of; to hear. [Obs.] --Spenser.
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7. To take or have the charge of. [Obs.] "Who undertakes you
to your end." --Shak.
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Keep well those that ye undertake. --Chaucer.
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Undertook \Un`der*took"\,
imp. of {Undertake}.
[1913 Webster]


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  • Cilia - BYJUS
    What’s the difference between villi and microvilli? Size of villi ranges between 0 5 to 1 6 mm while that of microvilli is about 1 µm in length Additionally, villi are seen on the mucous membrane, specifically in the small intestine Microvilli, on the other hand are small extension seen on the cell membrane of various structures
  • Functions of Small Intestine - BYJUS
    The finger-like projections known as villi, drastically increase the surface area of the small intestine for greater absorption of the digested food The blood carries the absorbed food material to different parts of the body Glucose breaks down to form oxygen and carbon dioxide and releases the energy required for various life processes
  • Labelled Diagram of Small Intestine - BYJUS
    Absorption is achieved by its large length and by the presence of mucous membrane, microvilli and villi The mucous membrane of the small intestine has circular folds that start from the second part of the duodenum These folds are closely set and large in the duodenal part and continue likewise till the proximal half of the jejunum
  • BYJUS Online learning Programs For K3, K10, K12, NEET, JEE, UPSC . . .
    The absorptive surface seen internally is fold-wise increased with the presence of villi-like processes Each villus is supplied richly with blood capillaries and lacteal or lymph vessels
  • Peyer’s Patches - BYJUS
    Peyer’s Patches – Location These patches are small masses of lymphatic tissues found all through the ileum area (last portion of the small intestine) of the small intestine Apart from digesting the food you eat further, the ileum also absorbs nutrients and water from food Peyer’s patches also referred to as aggregated lymphoid nodules form a significant portion of the immune system by
  • MCQs On Amniocentesis - BYJUS
    1 Amniocentesis, chorionic villi and alpha-fetoprotein sampling are performed to determine_____ (a) The most likely date of birth of the foetus (b) Whether the baby will be normal or abnormal (c) Whether the mother has a genetic abnormality (d) A and B Answer: (b) 2 Which of the following tests cannot be examined by Amniocentesis procedure?
  • How alveoli similar to villi - BYJUS
    Question How alveoli similar to villi Solution Both the alveoli in the lungs and villi in the small intestine are in direct contact with blood capillaries this enables gaseous exchange in the lungs via alveoli, and absorption of nutrients in the small intestine via villi Also, both increase the surface area of absorption
  • Which of the following statements are not true about villi?1. Villi . . .
    Villi are small finger like projections located in the walls of the small intestine Each villi is composed of a thin epithelium, blood capillary and a lymphatic vessel (lacteal)





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